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Finding the Fourth Proportional to 187,340.80, 281,011.20 and 62,681.80

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Solution

The fourth proportional to 187,340.80, 281,011.20 and 62,681.80 is: 94,022.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,340.80 : 281,011.20 = 62,681.80 : x
  2. Step 2: Convert to fraction form
    187,340.80/281,011.20 = 62,681.80/x
  3. Step 3: Cross multiply
    187,340.80x = 281,011.20 × 62,681.80
  4. Step 4: Simplify right side
    187,340.80x = 17,614,287,836.16
  5. Step 5: Solve for x
    x = 17,614,287,836.16/187,340.80
  6. Step 6: Final answer
    x = 94,022.70

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.